//
// Created by 21577 on 2025/2/12.
//
/*
 * 给定一个字符，用它构造一个底边长5个字符，高3个字符的等腰字符三角形。
 */
#include<iostream>
#include <cstdio>

using namespace std;

int main() {
    char c;
    cout<<"请输入一个字符："<<endl;
    cin >> c;
    cout << "   " << c << endl;
    cout << "  " << c << c << c << endl;
    cout << " " << c << c << c << c << c << endl;
    return 0;
}